Re: DFC bkp not working with AIX Client backing up Filesystem data.
You can check the DDBOOST library you are using, it should be For NW 8.2.3 - DD Boost library 18.104.22.168.
Also, there is a DFC driver required in AIX for taking backups over DFC to DD.
What exactly are you backing up FS, DB or applications, are they compatible with the DFC backups. You can check the compatibility at CompGuideApp